--  @testpoint:opengauss关键字replica(非保留)，作为函数名

--关键字不带引号-成功
drop function if exists replica;
create function replica(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function replica;
--关键字带双引号-成功
drop function if exists "replica";
create function "replica"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function "replica";
--关键字带单引号-合理报错
drop function if exists 'replica';
create function 'replica'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `replica`;
create function `replica`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/